An animal management system provides an alley to control the handling of animals when procedures are to be performed on the animals by veterinarians or cattle producers. The alley is formed by a base frame, and included therewith are a headgate and preferably two wedge-shaped access doors rotatably mounted with the base frame. The headgate is movable between an entrapping position to a releasing position for an animal, and coordinated movement of the at least one access door ensures that a lead animal is properly positioned while other down line animals do not interfere with care given to, or procedures performed on, the lead animal in the headgate. Each access door allows convenient access for persons to the lead animal, and the selective use of one of two doors at a time facilitates the access to and movement of animals of different sizes in the alley. The system may also include an articulating hitch assembly for coupling the alley with a towing vehicle and decoupling the alley so that the hitch assembly substantially does not block the exit of the alley.